57236328 has 128 divisors (see below), whose sum is σ = 170553600. Its totient is φ = 17740800.

The previous prime is 57236321. The next prime is 57236339. The reversal of 57236328 is 82363275.

57236328 is a `hidden beast` number, since 572 + 3 + 63 + 28 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (60480) is a multiple of the sum of its prime factors (360).

It is a junction number, because it is equal to n+sod(n) for n = 57236292 and 57236301.

It is not an unprimeable number, because it can be changed into a prime (57236321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203548 + ... + 203828.

It is an arithmetic number, because the mean of its divisors is an integer number (1332450).

Almost surely, 2^57236328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57236328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85276800).

57236328 is an abundant number, since it is smaller than the sum of its proper divisors (113317272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57236328 is a wasteful number, since it uses less digits than its factorization.

57236328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360 (or 350 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 57236328 is about 7565.4694500738. The cubic root of 57236328 is about 385.3812561042.

The spelling of 57236328 in words is "fifty-seven million, two hundred thirty-six thousand, three hundred twenty-eight".